介绍屋面防水施工选用的PV C防水卷材的性能，屋面坡度设计，砂浆找平层的处理，铺贴方法及各道工序的质量控制要。

This paper deals with features of water-proof PVC-roll-roofing used in roof construction, the methods of roofing slope designing, mortar float-coat and paving.

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在基岩上所需要做的全部工作是用少量混凝土或砂浆把表面找平。

All that is needed on rock is a little concrete or mortar to make the surface level.

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从砌筑砂浆、抹灰砂浆、屋面找平层三方面进行了论述；

And from three aspects as masonry mortar, plaster mortar and the roof leveling blanket the actions are discussed.

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